Starting device for internal-combustion engines.



W. H. ROZIER & S. G. IGOU. STARTING DEVICE FOR INTERNAL COMBUSTION ENGINES APPLICATIOX FILED 0CT.10.190S.

Patented July 13, 1909. 3 SHEETS-SHEET 1.

W. H. ROZIEH & S. C. IGOU. smmms'nsvmn run INTERNAL COMBUSTION means.

APPLICATION FILED OCT. 10. 1908.

Pateilted July 13, 1909.

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STARTING DEVIOE FOR INTERNAL COMBUSTION ENGINES.

. APPLICATION FILED OGT.10.1908. Patented 13,

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WELTON H. RQZIER AND SAMUEL (LIGOU, OF ST. LOUIS, MISSOURI.

STARTING DEVICE FOR INTERNAL-COMBUSTION ENGINES. I

To all whom it may concern:

Be it known that we, WEL'roN H. RozmR and SAMUEL C..IGOU, citizens of the United States, residing at St. Louis, in the State of Missouri, have invented a certain new and useful Starting Device for Internal-Combustion Engines, of which'the following is such 7 'a full, clear, and exact description as will be allowed to return to its initial position independently of the actuating connections, and further to provide means whereby thevactuating connections are automatically locked against movement so as to prevent the accidental engagement of the connections with the generator while the generator is in motion.

In the accom anying drawings, which illustrate some orms of starting devices -made in accordance with our invention,

Figure 1 is a sectional view, Fig. 2 is an enlarged side elevation showing a slight modification, Fig. 3 is a view simi ar to Fig. 2 but showin a still further modification, Fig. 4 is a top -p an view'showing the form of device illustrated in Fig. 3, Figs. 5, 6 and 7 are enlarged views showing details of construction, Fig. 8 is a side elevation of the generator and operating connections therefor, Fig. 9 is a section through the gearing shown in Fig. 8 and Figs. 10 and 11 are detailed views of the parts of the gearing shown in Fig. 9.

Like marks of reference refer to similar parts in the several views of the drawings. 10 represents a magneto electric machine which is driven from an internal combustion engine 11 through the interposition of a de-? vice 12 adapted to allow a limited relative? movement between the engine'and the mag, neto, as will be hereinafter more fully de-E scribed. The engine 11 and magneto 10% are mounted upon the frame 13 0f a motor; vehicle; The-device 12 is rovided with a? .toothed gear 14 which is a apted to -be en-i Specification of Letters Patent. Application filed October 10, 1908. Serial No. 457,052.

Patented July 13, 1909? gaged by a rack 15. This rack 15 moves in a guide 16 mounted on the crank shaft casing 17 of the engine 11. engages with a slot 18 in an arm 19 pivotally mounted on a bracket 20 also, secured to the crank shaft casing 17. A spring 21 normally holds the arm 19 in the position shown in Fig.1. in the arm 19 is a bar 23 provided with a notch 24 adapted to engage with a pin 25 passing through the said arm 19. of the bar 23 is pivoted at 26 toa suspension link 27 and also to a stem 28 carrying a foot piece or pedal 29 by means of which the sus- The end of the rack 15- Passing through a slot 22- The end 27 is provided with a spring 31 for'returning it to its normal position. The forward end of the bar 23 is provided with an inclined face 32'adapted to strike on a roller 33 carried by an extension 34 on the bracket 20 y when the bar23 has neared its forward limit of movement, the result of which will be to lift the bar 23 so as to disengage the notch 24 from the pin 25 and release the arm 19 so that the magneto mayreturn to its initial position in relation to the engine and thus produce the initial or starting spark for the engine.

In order to revent the accidental actuation of the pe al 29, the stem 28 is provided with a pin 36 adapted topa'ss through a crossslot 37 formed near the upper end of a slot 38 in which the stem 28 works. Guide pieces 39 are carried on the inner face of the plate 40 containing slots 37 and 38 so as to guide the pin into a position to pass through the cross-slot 37 when the pedal is returning to the normal position. Its weight then causes it to fall down to the position shown in Fig. 5' of the drawings and, consequently, the pedal cannot be operated until it is lifted sufliciently to bring the in 36 into alinement with the slot 37. Tiiis prevents the accidental actuation of the pedal 29 while the machine is in operation. Thismight otherwise occur and cause either the breakage of 'theconnectlons or of the. generator itself.

In Fig. 2 I'have shown a slight modificastituted for the rack 1 51 I ment edengag'es with the wheel14 and is carriedIbyi abracketAG supported on the crank shaftcasing -17... An arm 47 for actuating the segment is connected by means of a link 48 with the end of the arm 19. In this construction the slot 18 may be omitted from the arm 19. The operation of this form of starting device is so similar to that above described that it need not be given in detail.

A still further modification is shown in Figs. 3 and 4 of the drawings. In this modification the wheel 14 is adapted to be en.- gaged by a pinion 50 carried by a bifurcated arm 51 shown in detail in Fig. 7. This arm 51 is supported on thecrank shaft casing 1.7 by means of a bracket 52. The pinion 51 is provided with a drum 53 upon which is wound a cord 54. "This cord 54 passes around pulleys 55, 56 and 57 and is secured to the end of the arm 19 hereinbefore described. Within the drum 53 is a coil spring 58 which is secured at one end to the said drum and at the other to the arm 51 so as to rotate the drum in the direction to coil the cord 54 thereon. The arm 51 is also provided with a spring 60 which spring is somewhat lighter than the spring 58 so that when the cord is actuated b the movement of the arm 19 the arm 51 wi l first be swung on its pivot before the pinion 50 is rotated. As soon, however, as the pinion 50 comes into engagement with the wheel 14, the movement of the arm 51 will be stopped and the further movement of the cord 54 will rotate the pinion and thus actuate the wheel 14. As soon as the arm 19 is released by the engagement of the inclined face 32 of the bar 23 with the roller 33, the pinion 50 will move out of engagement with the wheel 14.

- The particular form of connection for allowing a limited movement between the engine and generator, while in itself not forming a part of the present invention, is necessarlv to a proper understanding thereof and wil now be described. Rigidly mounted on the end of the armature shaft 61 of the magneto 10 is the toothed disk 14. The disk 14 is provided with a hub 62 on which is loosely mounted the beveled gear wheel 12. The beveled gear wheel 12 is provided "with a sleeve 63 fitting over the hub 62 as best shown in Fig. 9. The disk 14- and beveled gear wheel 12 are recessed on their opposing faces so as to form a,chamber 64 adapted to receive the coil spring 65. This coil spring 65 is attached at one end by means of a pin 66 to the sleeve 63 on the beveled gear wheel 12 and at the other by means of a in 67 to the toothed disk 14. The beve ed gear wl reel 12 is provided with a cut-away ortion 68 preferably extending about ha f way around its circumference. This cut-away ortion 68 is adapted to receive a lu 69 ormed on the toothed disk 14. This al ows of a limited movement between the disk 14 and the beveled gear wheel 12 and at the same time these two parts are normally held together by means of the tension of the coil spring 65 so that the lug 69 is retained in the position shown in Fig. 8 of the drawings. In order to permanently lock these parts to' gether in case the spring 65 should become broken or weakened, I provide a hole 70 formed partly in the lug and partly in the adjacent part of the wheel 1.2 so that by the insertion of a screw or pin the parts may be firmly locked together. The beveled gear wheel 12 meshes with a beveled gear wheel 71 carried on an upright shaft 72 connecting the crank shaft (not shown) of the engine with the shaft which drives the valve gear of the engine. 1

It will be evident that the .above con struction allows the'armature of the generator to be moved independently of theengine and that the spring 65 will return the armature to its initial position to give a starting spark.

Having fully described our invention, what we claim as new and desire to secure by Letters Patent of the United States is:

1. The combination with an internal combustion engine, of an electrical generator therefor, gearing for driving said generator, means for permitting a limited movement of said generator relative to said engine, actuating means adapted to be'moved into and out of engagement with said generator, an operating device for said actuating means, and a tripping device interposed between said actuating means and operating device to disengage them While said actuating means is in en agement with said generator.

2. 1 he combination with an internal combustion engine, of an electrical generator therefongearing for driving said generator from said engine, means for permitting a limited movement of said generator relative to said engine, actuating means adapted to be moved into and out of engagement with I said generator, an operating device for said actuating means, and an automatic tripping device interposed between said actuating means and operating device to disengage them while said,actuating means is in engagement with said generator.

3. The combination with an internal combustion engine, of an electrical generator therefor, gearing for driving said generator from said engine, means for permitting a limited movement of said generator relative to said engine, actuating means adapted to be movedinto and out of engagement with said generator, an operating device for said actuating means, a tripping device interposed between said actuating means and operating device for disengaging them while said actuating means is in enga ement with said generator, and means for locking said operating device against movement.

4. The combination with an internal combustion engine, of an electrical generator therefor, gearing for driving said generator from said engine, means for permitting a limited movement of said generator relative to said engine, actuating means adapted to be moved into and out of engagement withsaid engine, an operating device for said actuating means, an automatic tripping device interposed between said actuating means and operating device for disengaging them while said actuating means is in engagement' with said generator, and means for locking said operating device against movement.

5. The combination with an internal combustion engine, of an electrical generator therefor, gearing for driving said generator from said engine, means for permitting a limited movement of said generator relative to said-engine, actuating means adapted to he moved into and out of engagement with said generator, an operating device for said actuating means, a tripping device interposed between said actuating means and operating device for disengaging them while said actuating means is in engagement with .said generator, and automatic means noractuating means, an automatic tripping device interposed between said actuating means and operating device for disengaging them while said actuating means is in engagement with said enerator, and automatic means normally ocking said operating device against movement. In testimony whereof we have hereunto set our hands and affixed our seals in the presence of the two subscribing witnesses.

WELTON H. ROZIER. a. 5. SAMUEL o. IGOU. a. s.)-

Witnesses:

W. A. ALEXANDER, Rnonas E. CAVE. 

